
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
    <div id="app">
        <h1>{{ text }}</h1>
        <button @click="changeString">逆转世界</button>
    </div>
 
</body>
<script src="./vue.js" ></script>
<script>
   const app = new Vue({
    el:'#app',
    data:{
        text:'Hellow,World'
    },
    methods:{
        changeString(){
            this.text = this.text.split('').reverse().join('');
        }
    }

   })
</script>
</html>